Adaptive Power Source Voltage Control for Lower Cable Loss
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Solution Overview
Problem
The existing power supply architecture for 48 V communications base stations is inefficient due to passive regulation of output voltage by the battery's charging characteristics, leading to increased cable loss and reduced power supply efficiency, especially with the advent of 5G technology where energy consumption and voltage requirements are higher.
Innovation Solution
A power supply method and source that adjusts the output voltage based on status information of energy-consuming components, such as load power percentage, using a rule table to determine optimal voltages that minimize input power consumption, thereby improving power supply efficiency and reducing cable loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the output voltage is passively regulated by the battery's charging characteristic, then the battery can be charged, but the power supply efficiency cannot be improved and cable loss increases
Solution Approach 1:
The patent implements dynamic voltage adjustment by allowing the power source to actively change its output voltage based on the energy-consuming component's status information. The voltage transitions from a fixed value determined by battery charging characteristics to a dynamically adjustable value that adapts to load conditions, thereby optimizing power supply efficiency and reducing cable loss.
Solution Approach 2:
The patent changes the voltage parameter from a passive fixed value to an actively controllable variable. By adjusting the output voltage according to status information (such as load power percentage) obtained from the energy-consuming component, the system optimizes the balance between power delivery and energy efficiency, reducing cable loss while maintaining proper battery charging.
2Loss of energy
If the output voltage is increased to reduce cable loss, then cable loss decreases, but the input power consumption increases
Solution Approach 1:
The system dynamically adjusts the output voltage based on the energy-consuming component's status information, such as load power percentage. When the load requires more power, the voltage is increased to reduce cable loss; when the load is light, the voltage is reduced to minimize input power consumption. This dynamic adaptation resolves the contradiction between reducing cable loss and minimizing input power.
Solution Approach 2:
The power source obtains status information from the energy-consuming component and uses this feedback to adjust the output voltage. The feedback loop enables the system to respond to actual load conditions, optimizing the voltage level to minimize both cable loss and input power consumption simultaneously, rather than using a fixed high voltage that would increase input power unnecessarily.
3Productivity
If the power source adjusts output voltage actively, then power supply efficiency improves, but the system complexity increases
Solution Approach 1:
The patent introduces status information as an intermediary that carries load condition data from the energy-consuming component to the power source. This intermediary enables intelligent voltage adjustment without requiring complex direct communication or control mechanisms, simplifying the overall system architecture while still achieving improved power supply efficiency through active voltage management.
4Loss of energy
If a fixed voltage is used for power supply, then the system is simple, but cable loss increases and power supply efficiency is poor
Solution Approach 1:
The patent transforms the static fixed voltage system into a dynamic voltage adjustment system. The power source actively changes its output voltage based on status information from the energy-consuming component, enabling the system to adapt to varying load conditions. This dynamic approach reduces cable loss and improves power supply efficiency without requiring complex additional hardware, as the adjustment is performed by the power source itself.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method effectively reduces cable loss and improves power supply efficiency by dynamically adjusting the output voltage according to the energy-consuming component's status, ensuring minimal input power is used for normal operation, even when mains electricity is abnormal, thus enhancing the overall power supply stability and efficiency.
Implementation Method 1
converting a voltage input into a power source into a first voltage, and supplying power to an energy-consuming component based on the first voltage
Data Source
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Figure 3B
AI summary
Embodiments of this application disclose a power supply method, a control method, a power source, and a detection apparatus, to improve power supply efficiency of a power supply system. The method in the embodiments of this application includes: converting a voltage input into a power source into a first voltage, and supplying power to an energy-consuming component based on the first voltage; obtaining status information obtained after the energy-consuming component is powered on, where the status information includes identification information of the energy-consuming component or current working status information of the energy-consuming component; determining a second voltage based on the status information; and converting the voltage input into the power source into the second voltage, and supplying power to the energy-consuming component based on the second voltage.